summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorJaegeuk Kim <jaegeuk.kim@samsung.com>2013-11-12 17:01:00 +0900
committerJaegeuk Kim <jaegeuk.kim@samsung.com>2013-12-23 10:18:00 +0900
commit1661d07c2d5e6486cab1c189cfb65ff60abf9b92 (patch)
tree1230d1c17610face401d553abe723cd52eafe7d9
parent3720887910864467a61cd0d64bad3965009cdef8 (diff)
f2fs: add a tracepoint for f2fs_issue_discard
This patch adds a tracepoint for f2fs_issue_discard. Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
-rw-r--r--fs/f2fs/segment.c1
-rw-r--r--include/trace/events/f2fs.h23
2 files changed, 24 insertions, 0 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index c51fa4bee60b..cfc0eb4f24d5 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -272,6 +272,7 @@ static void f2fs_issue_discard(struct f2fs_sb_info *sbi,
sector_t start = ((sector_t)blkstart) << sbi->log_sectors_per_block;
sector_t len = ((sector_t)blklen) << sbi->log_sectors_per_block;
blkdev_issue_discard(sbi->sb->s_bdev, start, len, GFP_NOFS, 0);
+ trace_f2fs_issue_discard(sbi->sb, blkstart, blklen);
}
static void add_discard_addrs(struct f2fs_sb_info *sbi,
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index e0dc355fa317..47ee70de7fed 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -727,6 +727,29 @@ TRACE_EVENT(f2fs_write_checkpoint,
__entry->msg)
);
+TRACE_EVENT(f2fs_issue_discard,
+
+ TP_PROTO(struct super_block *sb, block_t blkstart, block_t blklen),
+
+ TP_ARGS(sb, blkstart, blklen),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(block_t, blkstart)
+ __field(block_t, blklen)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = sb->s_dev;
+ __entry->blkstart = blkstart;
+ __entry->blklen = blklen;
+ ),
+
+ TP_printk("dev = (%d,%d), blkstart = 0x%llx, blklen = 0x%llx",
+ show_dev(__entry),
+ (unsigned long long)__entry->blkstart,
+ (unsigned long long)__entry->blklen)
+);
#endif /* _TRACE_F2FS_H */
/* This part must be outside protection */